HENRY, BIRD, SAMLEX, TOHTSU, RFI chokes, used Amps and accys


Tune-up charts for Henry and other amps
These are settings for somebody's specific amplifier, but will work as a good starting point for your tune-up.
Remember: preset band switch, tune and load as shown below and always use low power (10 watts) to start your tuning
If you have an amplifier and would like to submit your chart for posting here, please e-mail me

Basics: band switch set to proper band, High Voltage switch set to SSB.
WARC: 12M use 10M band, 17M use 15M band
Note: LOAD settings vary greatly based on your antenna
"D" in Henry model = desktop
Not sure if all amps will do WARC, see individual settings below, no settings = maybe not tested for WARC?


 

Submitted by W7RF   1KD-5 single 3-500 tube  
  Frequency in MHz Tune Load  
  3.800 191 41  
  7.200 105 30  
  14.200 46 47  
  18.125 38 58  
  21.250 28 70  
  24.925 15 66  
  28.400 4 67  


 

Submitted by W7RF   2KD-5 pair 3-500  
  Frequency Tune Load  
  3.800 044 40  
  7.200 115 65  
  14.200 154 65  
  18.125 163 68  
  21.200 173 75  
  24.925 184 70  
  28.500 191 70  
         

 

Submitted by W7RF   2KD-3 pair 3-500 Settings same for console
Frequency Tune Load
  3.800 144 170  
  7.200 84 115  
  14.200 48 128  
  21.200 24 108  
  28.500 18 78  

 

Submitted by W7RF   2K Classic pair 3-500  
  Frequency Tune  Load  
  3.800 152 120  
  7.200 82 82  
  14.200 44 80  
  18.125 36 64  
  21.200 26 54  
  24.925 ? ?  
  28.500 06 48  

 

Submitted by Tony I0JX   2K Ultra    
  Frequency Tune Load  
  3.520 08 27  
  3.780 09 85  
  7.070 17 50  
  14.180 52 30  
  21.280 72 64  
  28.500 80 60  

 

Submitted by W7RF   2KD Classic pair 3-500 tubes  
  Frequency Tune Load  
  3.800 156 86  
  7.200 86 64  
  14.200 48 54  
  18.125 38 52  
  21.200 28 40  
  24.925 18 42  
  28.500 10 26  
       
 
Submitted by W7RF   3K Classic X MKII  3CX1200A7 tube  
  Frequency Tune Load  
  3.800 142 140  
  7.200 76 106  
  14.200 42 90  
  18.125 34 74  
  21.200 26 58  
  24.925 16 86  
  28.500 06 64  

 

Submitted by W7RF   3K Classic X  8877 tube  
  Frequency Tune Load  
  3.800 130 164  
  7.200 70 122  
  14.200 32 126  
  18.125 24 110  
  21.200 12 86  
  24.925 ? ?  
  28.400 ? ?  

 

Submitted by W7RF   3K Premier 3CX1200A7  
  Frequency Tune Load  
  1.8 190+30 124  
  3.800 118 180  
  7.200 70 86  
  14.200 47 69  
  18.125 28 92  
  21.200 20 66  
  24.900 08 58  
  28.500 0 86  


 

Submitted by W7RF   3K-A pair 3-500  
  Frequency Tune Load  
  3.800 166 172  
  7.200 90 152  
  14.200 58 176  
  18.125 ? ?  
  21.200 36 148  
24.925 46 176
  28.500 24 130  

 

Submitted by Tony I0JX   4K ULTRA    
  Frequency Tune Load  
  3.520 074 216  
  3.790 089 267  
  7.070 230 320  
  10.110 279 353  
  14.200 316 391  
  18.130 338 408  
  21.270 349 423  
  24.900 359 449  
  28.480 372 452  

 

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Non-Henry's

Submitted by Tony I0JX   Kenwood TL-922    
  Frequency Tune Load  
  3.520   0.2  
  3.780   1.5  
  7.070   2.2  
  10.110   0.8  
  14.180   3.8  
  18.130   2.3  
  21.280   4.2  
  24.900   5.1  
  28.500   4.3  

 

Submitted by Tony I0JX   Collins 30L-1    
  Frequency Tune Load  
  3.780   2.1  
  7.090   2.9  
  14.180   4.9  
  21.280   3.5  
  28.500   4.8  

 

Submitted by Tony I0JX   Collins 30S-1 switch to "SSB"  
  Frequency Tune Load  
  3.520 40 95  
  3.780 50 79  
  7.070 53 44  
  14.180 73 66  
  21.280 81 66  
  28.500 86 79  

If you have an amplifier and would like to submit your chart for posting here, please e-mail me

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